Mold jacket



Oct. 29, 1929. PARKER 1,733,387

' MOLD JACKET Filed Jan. 11, 1927 ATTORNEYS.

Patented Get. 29, 1929 UNITED STATES PATENT OFFICE ERNEST A. PARKER, OF SPRINGFIELD, OHIO, ASSIGNOR TO THE SPRINGFIELD ALU- MINUM PLATE 8c CASTING-S COMPANY, OF SPRINGFIELD, OHIO, A. CORPORATION OF OHIO MOLD JACKET Application filed January 11, 1927.

This invention relates to mold jackets of the kind which are placed around sand molds after the fiask'has been removed to hold the mold together while the casting is being made.

The object of my invention is to provide a jacket which can be readily applied to the mold and removed therefrom.

A further and more specific object of the invention is to provide a jacket which is so arranged that the simple operation of lifting the jacket results in automatically spreading the lower edges of its sides to permit the ready placing of the jacket over the mold.

A further object of the invention is to provide a acket having hinged members of cast metal towhich wooden sides may be readily applied.

In the accompanying drawings:

Fig. 1 is a side elevation of a jacket em bodying the improvements showing the manner of placing the jacket upon a mold.

Fig. 2 is a side elevation of the same in place on the mold.

Fig. 3 is a side elevation of a portion of the jacket on an enlarged scale.

Fig. 4 is an end elevation of a portion of the jacket on an enlarged scale.

Fig. 5 is a top plan view on an enlarged scale of one corner of the jacket.

Fig. 6 is a section on the line a-a of Fig. 4.

The improved jacket is formed of fittings of cast metal constituting hinge members for a plurality of walls which will be referred to as sides and ends, the sides being indicated at 1 and the ends at 2 and being preferably constructed of wood. The fittings are applied to the respective sides and ends so as to be arranged in pairs at each corner of the completed jacket and each pair of'fittings is constructed as follows: The fitting which is attached to the side 1 is cast with a portion 3 and a portion lat right angles to each other so as to embrace the end of the wall 1 whenappliedthereto; the portion 3 being perforated to receive screws 5 by which it may be secured to the side member. The part 4 of this fitting has at its upper end a longitudinally extending integral cam projection 6 and its central port-ion is provided Serial No. 160,493.

with an integral longitudinally extending projection 7 formed with an elongated slot 8. The outer end of this projection 7 is longitudinally perforated and threaded to receive a screw 9.

The fitting which is attached to the end 2 consists of a portion 10 and a portion 11 arranged at right angles to each other so as to embrace the end wall and is secured thereto by the screws 12. The upper part of the portion 11 has an integrally formed laterally extending part 13 formed with an eye 15 which receives the cam projection 6, while projecting centrally from this portion 11 is a threaded stud 14 which extends loosely through the slotted opening 8 and has screwed thereupon a nut 16, one end of which is beveled as indicated at 17.

The projection 7, slotted opening 8, stud let and beveled nut 16 of each of the fittings constitutes means for pivotally connecting the end and side walls of the jacket together while the set screws 9 and nut 16 permit the necessary adjustment to regulate the size of the jacket to a nicety.

Each of the ends is provided along its upper edge with a finger hold 18 and in. operation, when the jacket is to be applied to the mold the operator lifts the jacket by placing his finger beneath the strips 18. The weight of the jacket causes the ends to swing upon their pivotal connections with the sides, the upper portions of the ends approaching each other while the lower portions spread apart as shown in Fig. 1. At the same time, the outer walls of the eyes 15, contacting the beveled projections 6 rock the side walls about their pivotal connections with the end walls to cause the upper portions of the side walls to approach each other and the lower portions to recede as shown in dotted lines in Fig. 4:. This operation causes all of the walls of the jacket to flare outwardly at the bottom so that it may be readily placed over the sand mold m, the walls of the jacket gradually swinging back to normal position as they drop over the sand mold to automatically adjust themselves to the shape of the mold and tightly hug the same to hold the mold together during the casting operation.

Another advantage in this construction is that the fittings constituting the hinges for the side and end walls may be shipped to the user who completes the jacket by supplying the wooden sides and ends, thus effecting a material saving in transportation charges and enablingthe user to utilize lumber for forming the wooden sides and ends which would otherwise be wasted.

' The pivotal connections between the adjacent edges of the ends and sides of the jacket are loose connections and the ends are sufficiently removed from the sides so that the ends and sides may freely swing upon horizontal axes and have some movement bodily to and from each other within the limits of the nuts 16 and screws 9. The axis upon which each of theends swings is represented by the axes of the studs 1e, while theaxis upon which each of the sides swings is one which passes centrally through the studs at right-angles thereto in a horizontal direction when the partsare in assembled position.

7 While it has been stated that the sides of the jacket are preferably formed of wood, yet it is to be vunderstood that the invention is equally applicable to jackets with metal sides, either cast or sheet.

Having thus described my invention I claim:

1. In a mold acket, a plurality of four enclosing walls, means for pivotally connecting adjacent ends of said walls together to permit relative swinging movement ofsaid walls upon horizontal axes, and inter-engaging parts between said wallsand carried solely thereby whereby, when two opposite walls are swung, a swinging movement will likewise be automatically imparted to the two other walls, to cause said jacket to assume a flaring shape.

2. In a mold jacket, a plurality of four enclosing walls, a handle upon each of two opposite walls located on the outer side thereof above the longitudinal centerline of said walls, means carried solely by the walls for pivotally connecting adjacent ends of said walls together to permit relative swinging movement of said walls upon horizontal axes, so that when said mold jacket is lifted by said handles the two walls provided with the handles will swing about the pivotal connections to cause their bottom edges to flare, the inter-engaging parts between saidwalls automatically causing a like swinging movement to the other walls. 3. In a mold jacket, a plurality of four enclo'sin walls, two opposite 'walls being Y pivotally connected 'to adjacent ends of the other walls at points between the upper and v lower edges of the respective walls by means carried solely by said walls, handle members on the outer side of said. first walls above the longitudinal center line of said walls, whereby when said first-mentioned walls are lifted by said handles, the upper portions of said walls will automatically s'wing inward ly and the lower portions automatically swing outwardly about said pivotal connections, and means for imparting a like swing ing movement to said second mentioned walls whereby the jacket will assume a flaring shape with the greatest dimensions thereof at the bottom.

4. In a mold jacket, a plurality of four enclosing walls, two opposite walls being directly pivotally connected to adjacentends of the other walls by horizontal pivots at points between the upper and lower edges of the respective walls, handle members on the outer side of said first walls above the longitudinal center line of said walls, whereby when said first-mentioned Walls are lifted by said handles, the upper portions of said walls will swing inwardly and the lower portions outwardly about said pivotal connections, and inter-engaging members between the walls having inclined surfaces whereby a like swinging movement is imparted to said second mentioned walls to cause the jacket to assume a flaring shape with the greatest dimensions thereof at the bottom.

5.. In a mold jacket, a plurality of four enclosing walls, two opposite walls being pivotally connected to adjacent ends of the other walls at points between the upper and lower edges of the respective walls, handle members on the outer sides of said first walls above the longitudinal center line of said Walls, whereby when said first mentioned walls are lifted by said handles, the upper portions of said wallswill swing inwardly and the lower portions outwardly about said pivotal connections, and cam projections on said second mentioned walls co-operating with parts on said first-mentioned walls whereby a like swinging movement is imparted to said second mentioned walls to cause the j acket'to assume a flaring shape with the greatest dimensions thereof at the bottom.

6. In a mold jacket, fittings for wooden walls consisting of a pair of castings for each corner of the jacket, one casting of each pair being adaptable to be secured to the adjacent end of a wooden wall and the other casting to the adjacent endof another wooden wall, a projecting threaded stud on'one ofsaid castings,a projection having an enlarged aperture on the other of said'c'astings to receive said studs, a'nut on said stud, an eye on'the studded casting and a cam projection on the c other casting co-operating with said eye, whereby the castingsmay be caused to swing together for the purpose specified.

nected to each corner of the jacket, one casting of each pair being adapted to be secured to the adjacent end of'a wooden wall and the other casting to the adjacent end of another wooden wall, a projecting threaded stud on 7.. In a mold jacket, fittings for wooden 'walls consisting of a pair of castings coni.

one casting of each pair located substantially midway the height of said casting, a projection having an eye on the other casting to receive said stud, said eye being of an 5 elongated character, a screw carried by said projection for adjusting the position of said stud, a nut on said stud, said studded casting having an eye adjacent its upper end, and a bevelled projection on the other casting cooperating With said eye.

In testimony whereof, I have hereunto set my hand this 10th day of January 1927.

ERNEST A. PARKER. 

